Ames, Gallon, Regular Grade Blue Max, A Special Blend Of Adhesive, High Strength Elastomeric Liquid Rubber, Impenetrable, Rubber Technology For Waterproofing In Extreme Wet Situations Such As Below Grade Foundations & Basement Walls, High In Solids & Dries To A Tough 800% Elastic Membrane That Resists Cracking & Peeling, Remains Flexible From -30 Degrees To 150 Degrees Fahrenheit, Impervious To Water When Applied In A Uniform & Seamless Fashion With Adequate Millage, Flows Into Cracks & Crevices As A Liquid & Sets Up As A Durable Rubber To Seal Leaks Wherever They Occur, UV Sensitive, Must Be Top Coated If Exposed To Sunlight.